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Finding the Fourth Proportional to 175,263.51, 262,790.11 and 80,374.83

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Solution

The fourth proportional to 175,263.51, 262,790.11 and 80,374.83 is: 120,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,263.51 : 262,790.11 = 80,374.83 : x
  2. Step 2: Convert to fraction form
    175,263.51/262,790.11 = 80,374.83/x
  3. Step 3: Cross multiply
    175,263.51x = 262,790.11 × 80,374.83
  4. Step 4: Simplify right side
    175,263.51x = 21,121,710,558.02
  5. Step 5: Solve for x
    x = 21,121,710,558.02/175,263.51
  6. Step 6: Final answer
    x = 120,514.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.